[boyt911sc]

Sal,

There is plenty of room to install a larger size diameter fuel lines in the tunnel. Like what Dean suggested, tack the fuel lines on 1-2-3 engine side of the tunnel. I used a strong nylon string to remove and install these fuel lines. An assistant at the other end of the car makes the removal/installation easier.

Make sure you have the correct fittings that are compatible with the other fuel lines in the engine or worse, locate adaptor/s unless your 10-mm return fuel line has the same fitting size as the 8-mm lines. There are several metal strips inside the tunnel that hold the fuel lines in place. Locate them and pry them loose before pulling the fuel line/s.

Keep us posted. Thanks.

Tony